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5.12b 插件进阶 ​

💡 一句话总结：掌握高级插件开发技巧，创建复杂功能插件。

学完你能做什么 ​

  • 能创建高级插件
  • 能实现复杂功能
  • 能进行性能优化
  • 能处理异步操作

🎒 开始前的准备 ​

确保你已经完成以下事项：

高级功能 ​

状态管理 ​

typescript
class AdvancedPlugin implements Plugin {
  private state: Map<string, any> = new Map();
  private subscribers: Set<(key: string, value: any) => void> = new Set();

  async initialize(api: OpenCodeAPI): Promise<void> {
    // 注册状态管理
    api.state.register("my-plugin", {
      get: (key: string) => this.state.get(key),
      set: (key: string, value: any) => {
        this.state.set(key, value);
        this.notifySubscribers(key, value);
      },
      subscribe: (callback) => {
        this.subscribers.add(callback);
        return () => this.subscribers.delete(callback);
      },
    });
  }

  private notifySubscribers(key: string, value: any): void {
    this.subscribers.forEach((cb) => cb(key, value));
  }
}

异步处理 ​

typescript
class AsyncPlugin implements Plugin {
  async initialize(api: OpenCodeAPI): Promise<void> {
    api.tools.register({
      name: "async-tool",
      handler: async (args) => {
        // 使用异步处理
        const result = await this.asyncOperation(args);
        return result;
      },
    });
  }

  private async asyncOperation(args: any): Promise<string> {
    // 模拟耗时操作
    await new Promise((resolve) => setTimeout(resolve, 1000));
    return "结果";
  }
}

依赖注入 ​

typescript
class DependencyPlugin implements Plugin {
  private services: Map<string, any> = new Map();

  async initialize(api: OpenCodeAPI): Promise<void> {
    // 注册服务
    this.services.set("logger", {
      log: (msg: string) => console.log(msg),
      error: (err: string) => console.error(err),
    });
    
    // 提供服务
    api.services.register("logger", () => this.services.get("logger"));
  }
}

性能优化 ​

缓存 ​

typescript
class CachedPlugin implements Plugin {
  private cache: Map<string, { data: any; expiry: number }> = new Map();

  async initialize(api: OpenCodeAPI): Promise<void> {
    api.tools.register({
      name: "cached-tool",
      handler: async (args) => {
        const cacheKey = JSON.stringify(args);
        
        // 检查缓存
        const cached = this.cache.get(cacheKey);
        if (cached && cached.expiry > Date.now()) {
          return cached.data;
        }
        
        // 执行操作
        const result = await this.expensiveOperation(args);
        
        // 存入缓存 (5分钟)
        this.cache.set(cacheKey, {
          data: result,
          expiry: Date.now() + 5 * 60 * 1000,
        });
        
        return result;
      },
    });
  }
}

批量处理 ​

typescript
class BatchPlugin implements Plugin {
  private queue: Array<{ args: any; resolve: Function }> = [];
  private processing = false;

  async initialize(api: OpenCodeAPI): Promise<void> {
    api.tools.register({
      name: "batch-tool",
      handler: async (args) => {
        return new Promise((resolve) => {
          this.queue.push({ args, resolve });
          this.processQueue();
        });
      },
    });
  }

  private async processQueue(): Promise<void> {
    if (this.processing) return;
    this.processing = true;

    while (this.queue.length > 0) {
      const batch = this.queue.splice(0, 10);
      const results = await Promise.all(
        batch.map((item) => this.expensiveOperation(item.args))
      );
      batch.forEach((item, i) => item.resolve(results[i]));
    }

    this.processing = false;
  }
}

完整示例 ​

typescript
import { Plugin, OpenCodeAPI } from "@opencode/plugin-api";

export default class TodoPlugin implements Plugin {
  name = "todo-plugin";
  version = "1.0.0";

  private state: Map<string, Todo[]> = new Map();

  async initialize(api: OpenCodeAPI): Promise<void> {
    // 初始化状态
    this.state.set("todos", []);

    // 注册工具
    api.tools.register({
      name: "todo-add",
      description: "添加待办事项",
      parameters: {
        text: { type: "string", required: true },
      },
      handler: async ({ text }) => {
        const todos = this.state.get("todos") || [];
        todos.push({ text, done: false });
        this.state.set("todos", todos);
        return `已添加: ${text}`;
      },
    });

    api.tools.register({
      name: "todo-list",
      description: "列出待办事项",
      handler: async () => {
        const todos = this.state.get("todos") || [];
        return todos.map((t, i) => `${t.done ? "✓" : "○"} ${t.text}`).join("\n");
      },
    });

    // 注册命令
    api.commands.register("todo.add", async (text: string) => {
      // ...
    });
  }

  async dispose(): Promise<void> {
    this.state.clear();
  }
}

检查点 ✅ ​

全部通过才能继续

  • [ ] 能创建高级插件
  • [ ] 能实现异步处理
  • [ ] 能进行性能优化
  • [ ] 能处理复杂场景

本课小结 ​

你学会了：

  1. 状态管理
  2. 异步处理
  3. 依赖注入
  4. 性能优化
  5. 完整示例

下一课预告 ​

下一课我们将学习 Hook 教程。

📚 更多完整模板：Prompt 模板库

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